JPS58208934A - Magnetic recording medium and its manufacture - Google Patents

Magnetic recording medium and its manufacture

Info

Publication number
JPS58208934A
JPS58208934A JP57089728A JP8972882A JPS58208934A JP S58208934 A JPS58208934 A JP S58208934A JP 57089728 A JP57089728 A JP 57089728A JP 8972882 A JP8972882 A JP 8972882A JP S58208934 A JPS58208934 A JP S58208934A
Authority
JP
Japan
Prior art keywords
layer
recording medium
magnetic recording
lubricity
ferromagnetic metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57089728A
Other languages
Japanese (ja)
Inventor
Soichi Matsuzaki
松崎　壮一
Seiji Yasui
政治 安井
Minoru Osada
実 長田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lincstech Circuit Co Ltd
Original Assignee
Hitachi Condenser Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Condenser Co Ltd filed Critical Hitachi Condenser Co Ltd
Priority to JP57089728A priority Critical patent/JPS58208934A/en
Publication of JPS58208934A publication Critical patent/JPS58208934A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To reduce Al2O3 produced during the formation of an AlN layer with C or B, and to enhance lubricity and abrasion resistance, by forming a ferromagnetic metal layer on the surface of a base, and a thin film of reducing substance, such as C or B, on this layer, and further, laminating an AlN layer. CONSTITUTION:The ferromagnetic metal layer 2 is formed on the substrate 1, such as polyester film, and then, a substance capable of reducing Al2O3, such as C, B, Ti, Cr, or Zr, is built up to the layer 2 in <=10nm thickness by the vapor deposition method or the like to form an undercoat layer 3. An AlN layer 4 having lubricity and abrasion resistance is obtained by evaporating Al through discharge in NH3 atmosphere. Al2O3 produced by a small amt. of O2 contd. in the atmosphere at the time of forming the layer 4 is reduced with the layer 3, and the purity of Al in the layer 4 is raised, resistance to abrasion and lubricity are enhanced. Hence, a magnetic recording medium superior in durability can be obtained.

Description

【発明の詳細な説明】 本発明は磁性体層Ｋｍ層する層を改良した磁気記録媒体
とその製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic recording medium having an improved magnetic layer Km and a method for manufacturing the same.

プラスチックフィルム等の基体に強磁性体金属を斜めに
付着した磁気記録媒体は、高抗磁力かつ高角形比を有し
、磁気記録密度が高く、最近、磁気テープ等として用い
られるようになってきた。Magnetic recording media, in which ferromagnetic metal is obliquely attached to a substrate such as a plastic film, have high coercive force and a high squareness ratio, and have a high magnetic recording density, and have recently come to be used as magnetic tapes, etc. .

磁気テープ等として用いられる場合、磁気へ。To magnetic when used as magnetic tape etc.

ドが表面を擦り損傷するのを防止するため、潤滑性や耐
摩耗性をもった窒化アルミニウムの層を設けることがあ
る。窒化アルミニウムの層は、アルミニウムを窒素また
はアンモニアガスの雰囲気中かつ放電中において蒸発さ
せて磁性体層の表面に付着し形成している。この際、雰
囲気中には酸素ガスが微量だが含まれてお。す、そのた
めアルミニウムが蒸発し途中で酸化アルミニウムが生成
されて、窒化アルミニウムの層の中に混入する。酸化ア
ルミニウムが混入すると窒化アルミニウムの潤滑性や耐
摩耗性が低下する欠点がある。In order to prevent the surface from being scratched and damaged, a layer of aluminum nitride, which has lubricity and wear resistance, is sometimes provided. The aluminum nitride layer is formed by evaporating aluminum in a nitrogen or ammonia gas atmosphere and during discharge to adhere to the surface of the magnetic layer. At this time, the atmosphere contains a small amount of oxygen gas. As a result, aluminum is evaporated and aluminum oxide is generated and mixed into the aluminum nitride layer. When aluminum oxide is mixed in, the lubricity and wear resistance of aluminum nitride are reduced.

本発明は１以上の欠点を改良１−１潤滑性及び耐摩耗性
を向−トしつる磁気記録媒体とその製造方法の提供を目
的とするもσ）である。The object of the present invention is to improve one or more of the following drawbacks: 1-1 To provide a magnetic recording medium with improved lubricity and wear resistance, and a method for manufacturing the same.

以下１本発明の実施例を図面に基づいて説明する。An embodiment of the present invention will be described below based on the drawings.

図におい又、１はポリエステル等の高分子フィルムから
なる基体である。２は基体１に積層された磁性体層であ
り、鉄やコバルト、二、ケル等を真空蒸着法やイオンプ
レーティレグ法、スパノクリ／グ法等により斜めに付着
したものである。５は磁性体層２に積１−されたアルミ
酸化物を還元しつる物質からなる第１層であり、炭素や
ホウ素。In the figure, 1 is a base made of a polymer film such as polyester. Reference numeral 2 denotes a magnetic layer laminated on the substrate 1, in which iron, cobalt, dichloromethane, or the like is obliquely adhered by a vacuum evaporation method, an ion platelet leg method, a spanokuri/reg method, or the like. 5 is a first layer made of a substance that reduces the aluminum oxide deposited on the magnetic layer 2, such as carbon or boron.

りｐム、チタン、ジルコニウム等の物質を真空蒸着法等
によりｔｏｏ′Ａ以下の厚さに付着したものである。４
は１第１１−６に積層された窒化アルミニウムからなる
第２層であり、窒素またはアンモニアカスを合む雰囲気
中でかつ放電中においてフルＳを７Ａ発させて窒化アル
ミニウムを付着させたものである。A material such as aluminum, titanium, zirconium, etc. is deposited to a thickness of less than too'A by a vacuum deposition method or the like. 4
1 is the second layer made of aluminum nitride laminated on No. 11-6, and aluminum nitride is deposited by emitting full S of 7A in an atmosphere containing nitrogen or ammonia scum and during discharge. .

すなわち、窒化アルミニウムの下地にアルミ酸化物を還
元しつる炭素やホウ素が積Ｉｉｉされて（・るので、雰
囲気中の酸素と反応して生じた酸化アＩＬ。That is, carbon and boron, which reduce aluminum oxide, are deposited on the base of aluminum nitride, resulting in oxidized aluminum produced by reaction with oxygen in the atmosphere.

ミニラムは第１層に付着して還元され、第２層の窒化ア
ルミニウムの純度が高くなり、従って、潤滑性及び耐摩
耗性が向上する。The minilam adheres to the first layer and is reduced, increasing the purity of the aluminum nitride in the second layer and thus improving its lubricity and wear resistance.

以上の通り２本発明によれば、潤滑性及び耐摩耗性か大
きく、耐久性を改善しつる磁気記録媒体とその製造方法
か得られる。As described above, according to the present invention, a magnetic recording medium and a method for manufacturing the same can be obtained which have great lubricity and wear resistance and improved durability.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の実施例の断面図を示す。 １・・・・・・基体、２・・・・・・強磁性体金属層。 ３・・・・・第１層、４・・・・・・第２層。 特許出願人　日文コンデンサ株式会社 The figure shows a cross-sectional view of an embodiment of the invention. 1...Base, 2...Ferromagnetic metal layer. 3...First layer, 4...Second layer. Patent applicant: Nichibun Capacitor Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] （１）　　基体に強磁性体金属を斜めに付着した磁気記
録媒体において、磁性体層の表面に積層されたアルミ酸
化物を還元する物質からなる第１層と、該第１層に積層
された窒化アルミニウムからなる第２層とを有すること
を特徴とする磁気記録媒体。 （２１基体に強磁性体金属を斜めに付着する磁気記録媒
体の製造方法において、磁性体層を形成後、該磁−性体
層にアルミ酸化物を還元しつる物質を付着して第１層を
形成しその後、窒素またはアンモニアガスを含む雰囲気
中でかつ放電中においてアルミを蒸発させて窒化アルミ
ニウムからなる第２層を形成することを特徴とする磁気
記録媒体の製造方法。(1) In a magnetic recording medium in which a ferromagnetic metal is obliquely attached to a substrate, a first layer made of a substance that reduces aluminum oxide is laminated on the surface of the magnetic layer, and a ferromagnetic metal is laminated on the first layer. A magnetic recording medium comprising a second layer made of aluminum nitride. (21) In a method for manufacturing a magnetic recording medium in which a ferromagnetic metal is obliquely attached to a substrate, after forming a magnetic layer, aluminum oxide is reduced to the magnetic layer and a vine substance is attached to form the first layer. A method for manufacturing a magnetic recording medium, which comprises forming a second layer made of aluminum nitride by evaporating aluminum in an atmosphere containing nitrogen or ammonia gas and during discharge.
JP57089728A 1982-05-28 1982-05-28 Magnetic recording medium and its manufacture Pending JPS58208934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57089728A JPS58208934A (en) 1982-05-28 1982-05-28 Magnetic recording medium and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57089728A JPS58208934A (en) 1982-05-28 1982-05-28 Magnetic recording medium and its manufacture

Publications (1)

Publication Number Publication Date
JPS58208934A true JPS58208934A (en) 1983-12-05

Family

ID=13978812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57089728A Pending JPS58208934A (en) 1982-05-28 1982-05-28 Magnetic recording medium and its manufacture

Country Status (1)

Country Link
JP (1) JPS58208934A (en)

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